Today's Message Index:
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1. 07:23 AM - Re: Re: Odyssey optimal charge voltage (Carl Froehlich)
2. 08:12 AM - Re: Re: Odyssey optimal charge voltage (David Clifford)
3. 01:13 PM - Re: Odyssey optimal charge voltage (bill.peyton)
Message 1
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| Subject: | Re: Odyssey optimal charge voltage |
I can tell you a stock Plane Power alternator works just fine with
Odyssey batteries. At full charge the buss voltage is 14.2 vdc.
I=99ve used this set up for over a decade (two Odyssey PC-625
battery system) without any issues. As these batteries maintain 90% of
their charge over six months I find no need to ever put a charger on the
batteries unless I=99m doing extended panel powered up stuff.
Even then I put a charger on with a volt meter and monitor to remove the
charger once terminal voltage gets to 14.2 or so. Leaving a standard
battery charger on a Odyssey battery is a good way to trash it as
battery terminal voltage will rapidly rise above 15vdc once you get pass
14.2vdc. At that point you are generating heat and hydrogen. If you
really must put a charger on it then get the Odyssey charger =93
then consider not using it unless you have good reason.
I change out one battery every two years as a routine maintenance item
(so neither battery is more than four years old). The pulled batteries
provide another four years or so of service in various tractors here at
the airpark. The only battery issue I had was when I left one of the
master switches on. While you might be able to beat a flat battery back
to life assume the damage will significantly degrade battery amp/hr
capacity and replace it.
Carl
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Kelly
McMullen
Sent: Thursday, May 14, 2015 11:20 PM
Subject: Re: RV10-List: Re: Odyssey optimal charge voltage
It is that charge phase that had me thinking that the alternator
regulator might need to be set above 14.2.
On Thu, May 14, 2015 at 7:27 PM, dmaib@me.com <dmaib@me.com> wrote:
I have an Odyssey brand charger for my 925. According to the
documentation, it initially charges at 14.3-14.7 volts (give or take)
until the battery is charged. Then it goes to the trickle charge mode at
13.6-13.8 volts (give or take). It can be left in the trickle charge
mode indefinitely, according to the manual.
--------
David Maib
RV-10 #40559
New Smyrna Beach, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=442122#442122
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Message 2
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| Subject: | Re: Odyssey optimal charge voltage |
I concur with Carl here about placing the Odyssey batteries on a charger. I
have a PC625 I placed in my wave runner about 15 years ago and its still g
oing strong. I don't even bother charging it up at the beginning of the sea
son. Its always ready to go. I also have them in lawn equipment. Same thing
with no issues. My buddy uses PC625's in his Cozy MKIV. He used to keep th
e Odyssey charger plugged in when the plane was parked. Batteries were toas
ted in 2 years. I have dual 680's in my -10 and only place a charger on it
when doing avionics work in the hanger. As soon as the green "charged" ligh
t comes on, it gets disconnected.
David Clifford
N646RV
----- Original Message -----
From: "Carl Froehlich" <carl.froehlich@verizon.net>
Sent: Friday, May 15, 2015 9:17:11 AM
Subject: RE: RV10-List: Re: Odyssey optimal charge voltage
I can tell you a stock Plane Power alternator works just fine with Odyssey
batteries. At full charge the buss voltage is 14.2 vdc.
I=99ve used this set up for over a decade (two Odyssey PC-625 battery
system) without any issues. As these batteries maintain 90% of their charg
e over six months I find no need to ever put a charger on the batteries unl
ess I=99m doing extended panel powered up stuff. Even then I put a ch
arger on with a volt meter and monitor to remove the charger once terminal
voltage gets to 14.2 or so. Leaving a standard battery charger on a Odyssey
battery is a good way to trash it as battery terminal voltage will rapidly
rise above 15vdc once you get pass 14.2vdc. At that point you are generati
ng heat and hydrogen. If you really must put a charger on it then get the O
dyssey charger =93 then consider not using it unless you have good re
ason.
I change out one battery every two years as a routine maintenance item (so
neither battery is more than four years old). The pulled batteries provide
another four years or so of service in various tractors here at the airpark
. The only battery issue I had was when I left one of the master switches o
n. While you might be able to beat a flat battery back to life assume the d
amage will significantly degrade battery amp/hr capacity and replace it.
Carl
From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@m
atronics.com] On Behalf Of Kelly McMullen
Sent: Thursday, May 14, 2015 11:20 PM
Subject: Re: RV10-List: Re: Odyssey optimal charge voltage
It is that charge phase that had me thinking that the alternator regulator
might need to be set above 14.2.
On Thu, May 14, 2015 at 7:27 PM, dmaib@me.com < dmaib@me.com > wrote:
I have an Odyssey brand charger for my 925. According to the documentation,
it initially charges at 14.3-14.7 volts (give or take) until the battery i
s charged. Then it goes to the trickle charge mode at 13.6-13.8 volts (give
or take). It can be left in the trickle charge mode indefinitely, accordin
g to the manual.
--------
David Maib
RV-10 #40559
New Smyrna Beach, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=442122#442122
===========
-List" target="_blank"> http://www.matronics.com/Navigator?RV10-List
===========
FORUMS -
_blank"> http://forums.matronics.com
===========
b Site -
-Matt Dralle, List Admin.
target="_blank"> http://www.matronics.com/contribution
===========
http://www.matronics.com/Navigator?RV10-List
http://forums.matronics.com
http://www.matronics.com/contribution
===
Message 3
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| Subject: | Re: Odyssey optimal charge voltage |
When I spoke with technical support at odyssey, they recommended charging both
the 680 and 925 batteries at a nominal voltage of 14.4-14.5 volts. Unfortunately,
if you have the plane power alternator, with th internal VR the only way
to increase the charging voltage is to add resistance in the field line going
to the alternator. The PP alternator uses the field line to sense the charge
voltage. What I did was to use a #20 gauge wire to feed the field voltage.
More than sufficient to carry the 5 amp load, but small enough diameter to create
a slight voltage drop. I charge at 14.5 volts. Almost 3 years and 380 hours,
and still going strong. Will 14.2 volts work? Probably
--------
Bill
WA0SYV
Aviation Partners, LLC
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=442146#442146
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